In this work, we aimed to investigate the effect of the combination of starch nanoparticles (SNPs) and Tween 80 (TW) on the stability of oil-in-water emulsions. The emulsions prepared under different SNPs/TW ratios and different oil fraction values were characterized by means of photography, optical microscopy, laser particle size analysis, rheological measurement, quartz crystal microbalance analysis, and confocal laser scanning microscopy. At an oil fraction value of 0.4, the emulsions with a 3: 1 ratio of SNPs (1.5%, w/v) to TW (0.5%, w/v) exhibited excellent storage stability over a long period of 30 d, which was significantly better than the 2% TW stabilized emulsion and the 2% SNPs stabilized emulsion. Compared with the SNPs stable emulsions, the presence of TW decreased the emulsion droplets size, which was beneficial to reduce the aggregation of droplets. Emulsions co-stabilized by SNPs and TW can maintain good performance under harsh conditions. The results of quartz crystal microbalance analysis and isothermal titration calorimetry revealed non-covalent interactions between SNPs and TW. The results showed that SNPs and TW co-existed at the oil-water interface and improved the performance of the emulsion.

在这项工作中，我们旨在研究淀粉纳米粒子（SNPs）和吐温80（TW）的组合对水包油乳液稳定性的影响。通过照相，光学显微镜，激光粒度分析，流变学测量，石英晶体微量天平分析和共聚焦激光扫描显微镜对在不同SNPs / TW比和不同油分值下制备的乳液进行了表征。在油分值为0.4的情况下，SNP比例为3：1的乳液（1.5％，w / v）至TW（0.5％，w / v）在30 d的长时间内表现出优异的储存稳定性，这明显优于2％TW稳定的乳液和2％SNPs稳定的乳液。与SNPs稳定乳液相比，TW的存在降低了乳液液滴的大小，这有利于减少液滴的聚集。SNP和TW共同稳定的乳液可以在恶劣条件下保持良好的性能。石英晶体微量天平分析和等温滴定热分析的结果表明，SNP和TW之间存在非共价相互作用。结果表明，SNP和TW在油水界面共存，改善了乳液的性能。